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Finding the Fourth Proportional to 291,900.72, 437,855.40 and 192,696.24

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Solution

The fourth proportional to 291,900.72, 437,855.40 and 192,696.24 is: 289,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,900.72 : 437,855.40 = 192,696.24 : x
  2. Step 2: Convert to fraction form
    291,900.72/437,855.40 = 192,696.24/x
  3. Step 3: Cross multiply
    291,900.72x = 437,855.40 × 192,696.24
  4. Step 4: Simplify right side
    291,900.72x = 84,373,089,243.70
  5. Step 5: Solve for x
    x = 84,373,089,243.70/291,900.72
  6. Step 6: Final answer
    x = 289,047.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.